LG RT-29FC90RB Service Manual page 18

All manuals and user guides at all-guides.com
Check the waveform at
pin 21,22 of IC601.
Check / Replace
IC601.
DON'T CATCH CHANNEL(MAIN)
Check the voltage at
pin9 of TU101.
Check/Replace
R403,FB854,D861,ZD102.
Check the waveform at
pin19 of TU101(Video).
Check/Replace
TU101.
Check/Replace
IC201S,IC101S.
Check the voltage at
pin 14 of TU101.
CHECK/REPLACE
TU101.
YES
Check the waveform at
pin 1,3 of IC602.
YES
Check / Replace Check / Replace
H/P JACK. IC603.
Check the voltage at
pin13 of TU101(5V).
Check/Replace
IC854,F856.
Check the waveform at
pin2 of P213A.
Check/Replace
Q108,C114,R119.
CHECK/REPLACE
CHECK/REPLACE
IC001.
- 18 -
Check the voltage at
pin 14 of T101.
2.5V
CHECK/REPLACE
TU101.
0V
IC001.